I hate to burst your bubble but king310 and newfie are not totally right.
If you created the pattern make sure you are not violating any trademark or copyrights. For example, uploading a pattern of the Harley Davidson emblem is a no-no. Disney characters, School mascots, College mascots, NFL, NASCAR, NHL, MLB, NBA and some celebrity images, etc... are all on the forbidden list.
You can create any pattern you want for your own use. But if it violates trademark or copyrights do not post it here or there will be big problems.
Bottom line is anyone can give advice all you want, just not on Copyright/Trademark issues. That is reserved for Steve Good and myself so that there is no confusion on the issue here on the forum. Some people in the past have been given misleading information.